<%--
  Created by IntelliJ IDEA.
  User: ZJM
  Date: 2024/4/18
  Time: 22:08
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
  <title>Title</title>
</head>
<body>
<%
request.setAttribute("key","request");
// pageContext.setAttribute("key","pageContext");
session.setAttribute("key","session");
application.setAttribute("key","application");
%>
<%--EL表达式--%>
<div>${key}</div>
</body>
</html>
